PMSE User Meeting in Dubai, UAE · What happens after next WRC? WRC-12 decided to implement mobile service in 700 MHz after WRC -15. Current PMSE use in 700 MHz can’t be continued

Association ofProfessional WirelessProduction Technologies

PMSE User Meeting in Dubai, UAE Sunday, August 30, 2015

Matthias Fehr Bruno MarxPresident Ambassador

Introduction

This is an ongoing information process, started in January in New Zealand.

It is our strong desire to have a meaningful and productive conversation with the national government and local PMSE users.

Your contribution is important to ensure the further growth of the tourism and hospitality industry here in the UAE.

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Introduction

Regulatory decisions are required to preserve the frequency resources necessary for the production of events.

Not doing so will have catastrophic consequences for all upcoming events such as the Asian Cup 2019 as well as the EXPO 2020.


APWPT

APWPT is an international non-profit organisation, which represents the needs of all users of the Programme Making & Special Event (PMSE) sector.

Members from 17 countries make up the network. The main member group are 21 professional associations that represent more than 25.000 members.

All major audio PMSE manufactures are our member and give substantial input.

APWPT ambassadors are the interface to national PMSE users –as Bruno Marx is in the UAE.


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Agenda

The application PMSE and the relevant spectrum use.

Spectrum changes in 700 MHz. What happens after WRC-15.

PMSE as viewed by manufacturers, study groups and science.

PMSE spectrum as a matter for the WRC-15.

Your questions.


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The Application PMSE (SAB/SAP)

PMSE (Programme Making and Special Events) are all wireless production tools for content and event production.

SAB/SAP is an ITU term and means the same. ITU is a sub-organisation of the United Nations.


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Frequency Allocation- UAE National Allocation Table (NAT) -

This graphic showsa segment of theUAE frequencyallocations as of 2010.We know that in the small segment 470 to 790 MHz broadcast transmitters and PMSE are in operation. Let’s look at the spectrum during events.


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The Application PMSE and Relevant Spectrum Use

This graphic, presented during ITU Joint Task Group JTG 4-5-6-7, shows typical indoor broadcast and

PMSE spectrum sharing:

Source: ITU Document 4-5-6-7/230-E, NRD (D)


IEM Microphones

~15 MHz

TV TV TV TV

PMSE in the “Middle of Nowhere”Wikipedia: “Wacken Open Air is a summer open-air heavy metal music festival. It takes place annually in the small village of Wacken in Schleswig-Holstein, northern Germany. With 80,000 festival visitors…”

For four days the spectrum was completely in use by TV & PMSE and LTE:



Large events

in metropolitan

areas

August 30, 2015 PMSE user meeting in Dubai 11Source: Goggle Maps

The new Dubai Opera will be surrounded by several PMSE productions

Dubai is a metropolitan area..

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PMSE Operation is limited by

Intermodulation

Propagation

Body effect

Multiple units on actor’s body


The Effect of IntermodulationIn-Ear-Monitoring (IEM) Example

In a test setup the Intermodulation of 20 audio links was simulated:

This is a typical hardware arrangement: 20 IEM transmitters are combined to one power amplifier

and the output signal is radiated by a single stage antenna.


MultiCarrierSource

P

NonLinearBlock

Antenna


1) PMSE in an IM-free frequency arrangement


IM level

-70dBm


2) PMSE in a linear frequency grid arrangement


IM level

-40dBm

Note: this frequency setup decreases the PMSE link performance by ~30 dB

Propagation Effects

This graphic shows a typical receiver input level, considering the statistical distribution on a transmission path (50mW ERP)

Note: this simulation shows an optimistic transmission path, e.g. in theatres or sport halls


Body EffectMeasurement in an EMC Test Chamber

A PMSE body-worn unit was measured in a reflection-free room


Test device on a rotary platform

Test person 360° body effect

Multiple Units on Actor’s Body

Several electronics as well as PMSE are often mounted on an actor’s body

In addition other actors are in close proximity

All are operated in a frequency congested stage environment, e.g. LED walls, Talk Back Systems etc.


Multiple units on actor’s body


IEM antenna on actor’s back

Photo: ZDF (D)

Let Us think..

We have presented Intermodulation effects on multiple PMSE transmitters Propagation effects between PMSE transmitter an receiver Body effect that reduced the field strength in some directions Multiple units on actor’s body and their interaction

These can appear as a single or a combined effect.

Question: 10 dB of loss reduces the safe operation distance by which factor?


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PMSE Spectrum Use

Up to now Operation inside given frequency ranges Terrestrial TV must be protected PMSE is unprotected against interference

Because there was sufficient free spectrum this has worked for a long time but this situation is changing rapidly. Background is the growing or new spectrum demand by a number of applications.


Typical Content Production Chain


Source: ETSI System Reference Document TR 102 546

The (un-)protected Production Chain

Singer & Mic Mixer Postproduction Distribution

We wonder, can future unprotected microphone usage still support the high economic benefit

of very high quality content?

What could be the alternative?August 30, 2015 PMSE user meeting in Dubai 23

Unprotected Mic protected distribution chain

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Alternatives?

Back to wired microphones?A wired microphone in “holiday on ice”

is fun … until the first turn.

OR

Protected PMSE operation in clean radio spectrum? … YES!


Alternatives as Discussed in International Study Groups

Safeguarding of protected PMSE operation in the existing TV bands Semi-professional use of IMT duplex gaps

Example: In September 2014 European Commission harmonized the 800 and 1800 MHz duplex gaps for “daily production”.

Alternative spectrum for PMSE Currently the European CEPT is studying

1350-1400 MHz and 1492-1525 MHz ITU JTG 4-5-6-7 suggests 1200-1600 MHz for further considerations

APWPT suggests discussion in the UAE to support national and international (WRC-15) decisions


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Spectrum Changes in 700 MHz. What happens after next WRC?

WRC-12 decided to implement mobile service in 700 MHz after WRC-15.

Current PMSE use in 700 MHz can’t be continued. ITU study group JTG 4-5-6-7 suggests SAB/SAP usage

in the remaining duplex gap (733-758 MHz) and guard band (694-703 MHz). Here the question remains if the UAE could support a decision at WRC-15 concerning duplex gaps and guard bands?


Spectrum Changes in the UHF-TV BandWhat is the situation after WRC-15?

This will happen: 700 MHz open for LTE

This might happen after WRC-15 as already happened in other regions

PolicyTracker, August 28, 2015:“The GSM Association, which is leading the mobile industry’s lobbying at the ITU, has identified four bands that it wants identified for mobile broadband: the UHF band..”


APWPT’s critical Comment to presented IMT Spectrum Demand

APWPT and others believe that IMT (mobile phones) wireless demand is being overestimated.

APWPT is concerned that 5G networks will be built parallel to GSM, UMTS and 4G networks, with substantial waste of spectrum resources.

APWPT requests short-term upgrade of 2G/3G networks to 4G, that is more spectrum efficient.

Efficient spectrum use requires use of the latest technologies, so 4G/5G must be used in all mobile frequency bands.

This must be decided by TRA August 30, 2015 PMSE user meeting in Dubai 28

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PMSE as viewed by Manufacturers

Our manufacturers clearly state that usable technology is in the pipeline.

Before investments and R&D planning security is needed.

It is not acceptable to change regulations frequently.

PMSE users also want an acceptable ROI. The PMSE useful life is up to 8 years.


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PMSE as viewed by Study Groups.- we have the results needed for decisions -

PMSE are described by ETSI (EU) documents and standards CEPT created productive documents, e.g. ECC Report 204

“Spectrum use and future requirements for PMSE” ITU-R created vital documents for a WRC-15 decision

BT.2338 “Services ancillary to broadcasting/services ancillary to programme making spectrum use in Region 1 and the implication of a co-primary allocation for the mobile service in the frequency band 694-790 MHz”

BT.2344 “Information on technical parameters, operational characteristics and deployment scenarios of SAB/SAP as utilized in broadcasting”


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PMSE as viewed by Science

Who believes that digitizing PMSE isthe only solution to spectrum loss?

Prof. Dr. Fischer, University Nurnberg-Erlangen (Germany) sees these common misunderstandings: “Digital is better! – That’s wrong!” “It can be better, but it also can be worse.”

Studies show digital PMSE supports the necessary production quality & reliability, but doesn’t save spectrum.


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Alternatives for PMSE as a matter for the WRC 2015

ITU study group JTG 4-5-6-7 suggests Continued SAB/SAP (PMSE) operation in 470-694 MHz The usage in the remaining duplex gap (733-758 MHz)

and guard band (694-703 MHz)APWPT notes: this can be affected by AI 1.3 (PPDR).As a result, 25 to 30 MHz have to be identified in alternative SAB/SAP spectrum.

To identify alternative spectrum in 1200-1600 MHzAPWPT notes: European CEPT is already studying the bands 1350-1400 MHz and 1492-1525 MHz. APWPT represents PMSE users in the relevant groups.


Conclusion

We are in a demanding situation, even without further complications.

Because of propagation, body effect,Intermodulation, interference and more,PMSE are tools that require professional expertise and the support of regulators.

Spectrum reallocations will seriously impact PMSE. A solution is needed now.

The situation becomes uncontrollable without dedicated frequency allocation for our PMSE.


What a challenge!

Next Steps- we need your support -

September 1, Meeting at TRA, Abu DhabiWhat statement for TRA should come out of todays meeting?

September 7, one-day PMSE workshop in Paris November 2-27, World Radiocommunication Conference

Please join our international network to ensure your interests in the long run.


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Your questions

How to get further information?www.apwpt.org

Local [email protected] / +971 56 65 92 92 7

APWPT [email protected]


http://www.apwpt.org/

mailto:[email protected]

mailto:[email protected]

Documents

PMSE User Meeting in Dubai, UAE · What happens after next WRC? WRC-12 decided to implement mobile service in 700 MHz after WRC -15. Current PMSE use in 700 MHz can’t be continued